| Measurement of visible light transmission in dispersions of sand
particles (67-250 !Lm) in clear medium has been described. Optical
density has been shown to be linearly related to dispersion concentration
and depth. Furthermore, for coarser particles, optical density
was approximately governed by the total surface area of particles in
unit volume. It has been shown that one could estimate, approximately,
the concentration of solids in a dispersion and surface area
of particles using a calibration procedure based on light transmission
data. |
